package cn.dubito.learning.web.controller;

import cn.dubito.learning.web.controller.dto.FileInfo;
import org.apache.commons.io.IOUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;


/**
 * @author liliang
 * @description:
 * @date 2018/1/21.
 */
@RequestMapping("/file")
@RestController
public class FileController {

    public static final String FOLDER = "/Users/liliang/IdeaProjects/dubito-security-demo/src/main/java/cn/dubito/learning/web/controller";

    @PostMapping
    public FileInfo upload(MultipartFile file) throws IOException {
        System.out.println(file.getName());
        System.out.println(file.getOriginalFilename());
        System.out.println(file.getSize());

        File localFile = new File(FOLDER,System.currentTimeMillis() + ".txt");
        file.transferTo(localFile);
        return new FileInfo(localFile.getAbsolutePath());
    }

    @GetMapping("/{id}")
    public void download(@PathVariable String id, HttpServletRequest request, HttpServletResponse response) throws IOException {

            try(InputStream inputStream = new FileInputStream(new File(FOLDER, id + ".txt"))){
                OutputStream outputStream = response.getOutputStream();
                response.setContentType("application/x-download");
                response.addHeader("Content-Disposition","attachment;filename=test.txt");

                IOUtils.copy(inputStream,outputStream);
                outputStream.flush();
            }
    }
}
